Ethene dimerization over Ni-beta catalysts prepared by solid-state ion exchange
SCIE
SCOPUS
- Title
- Ethene dimerization over Ni-beta catalysts prepared by solid-state ion exchange
- Authors
- LEE, KYOUNGHWAN; Hong S.B.
- Date Issued
- 2021-04-05
- Publisher
- Elsevier BV
- Abstract
- Owing to the environmental and technological problems of current commercial homogeneous organometallic catalysts, developing efficient heterogeneous catalysts for ethene dimerization is of industrial importance. Nickel-exchanged zeolite beta (Ni-beta) is a promising catalyst for this reaction due to its highly stable 1-butene yield. Here, we report that the Ni-beta catalyst shows a considerably better 1-butene yield when prepared by solid-state ion exchange compared to liquid-phase ion exchange and incipient wetness impregnation. A combination of CO IR, Ni K-edge X-ray absorption and UV-vis spectroscopies, and density functional theory calculations demonstrate that solid-state ion exchange is an efficient method to form the intrazeolitic mono(μ-oxo)dinickel ([Ni-O-Ni]
- Keywords
- ETHYLENE OLIGOMERIZATION; HETEROGENEOUS OLIGOMERIZATION; ZEOLITE CATALYSTS; ALPHA-OLEFINS; BEA ZEOLITES; NICKEL SITES; CO; MECHANISM; METHANE; POLYMERIZATION
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/106585
- DOI
- 10.1016/j.apcata.2021.118059
- ISSN
- 0926-860X
- Article Type
- Article
- Citation
- APPLIED CATALYSIS A-GENERAL, vol. 615, 2021-04-05
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